Chitosan/clay films' properties as affected by biopolymer and clay micro/nanoparticles' concentrations

Detalhes bibliográficos
Autor(a) principal: Casariego, A.
Data de Publicação: 2009
Outros Autores: Souza, B. W. S., Cerqueira, M. A., Teixeira, J. A., Cruz, L., Díaz, R., Vicente, A. A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/1822/9449
Resumo: Blends of chitosan (from Cuban lobster) and clay micro/nanoparticles were prepared by dispersion of the clay particles in the film matrix and the films obtained were characterized in terms of water solubility, water vapor, oxygen and carbon dioxide permeability, optical, mechanical and thermal properties using an Instron universal testing machine, differential scanning calorimetry, thermogravimetric analyses and scanning electron microscopy (SEM). The water vapor barrier properties of the films were significantly improved by incorporation of clay in their composition, while the water solubility decreased as the clay concentration increased (for a constant chitosan concentration). The tensile strength of chitosan/clay films increased significantly with increasing chitosan and clay concentrations, while the values of elongation decreased slightly for high values of chitosan concentration. Tm increased with the increase of chitosan concentration, but the changes in Tm with the addition of clay were not significant. Polynomial models were fitted to the experimental data in order to facilitate future design of chitosan/clay film systems.
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spelling Chitosan/clay films' properties as affected by biopolymer and clay micro/nanoparticles' concentrationsChitosanClayMicro/nanocompositeGas permeabilityMechanical propertiesThermal propertiesScience & TechnologyBlends of chitosan (from Cuban lobster) and clay micro/nanoparticles were prepared by dispersion of the clay particles in the film matrix and the films obtained were characterized in terms of water solubility, water vapor, oxygen and carbon dioxide permeability, optical, mechanical and thermal properties using an Instron universal testing machine, differential scanning calorimetry, thermogravimetric analyses and scanning electron microscopy (SEM). The water vapor barrier properties of the films were significantly improved by incorporation of clay in their composition, while the water solubility decreased as the clay concentration increased (for a constant chitosan concentration). The tensile strength of chitosan/clay films increased significantly with increasing chitosan and clay concentrations, while the values of elongation decreased slightly for high values of chitosan concentration. Tm increased with the increase of chitosan concentration, but the changes in Tm with the addition of clay were not significant. Polynomial models were fitted to the experimental data in order to facilitate future design of chitosan/clay film systems.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES, Brazil)Fundação para a Ciência e a Tecnologia (FCT)αLFA VALNATURA Project of Europe Aid Cooperation OfficeElsevierUniversidade do MinhoCasariego, A.Souza, B. W. S.Cerqueira, M. A.Teixeira, J. A.Cruz, L.Díaz, R.Vicente, A. A.2009-102009-10-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/9449eng"Food Hydrocolloids". ISSN 0268-005X. 23:7 (Oct. 2009) 1895-1902.0268-005X10.1016/j.foodhyd.2009.02.007info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T11:56:30Zoai:repositorium.sdum.uminho.pt:1822/9449Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:46:06.609950Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Chitosan/clay films' properties as affected by biopolymer and clay micro/nanoparticles' concentrations
title Chitosan/clay films' properties as affected by biopolymer and clay micro/nanoparticles' concentrations
spellingShingle Chitosan/clay films' properties as affected by biopolymer and clay micro/nanoparticles' concentrations
Casariego, A.
Chitosan
Clay
Micro/nanocomposite
Gas permeability
Mechanical properties
Thermal properties
Science & Technology
title_short Chitosan/clay films' properties as affected by biopolymer and clay micro/nanoparticles' concentrations
title_full Chitosan/clay films' properties as affected by biopolymer and clay micro/nanoparticles' concentrations
title_fullStr Chitosan/clay films' properties as affected by biopolymer and clay micro/nanoparticles' concentrations
title_full_unstemmed Chitosan/clay films' properties as affected by biopolymer and clay micro/nanoparticles' concentrations
title_sort Chitosan/clay films' properties as affected by biopolymer and clay micro/nanoparticles' concentrations
author Casariego, A.
author_facet Casariego, A.
Souza, B. W. S.
Cerqueira, M. A.
Teixeira, J. A.
Cruz, L.
Díaz, R.
Vicente, A. A.
author_role author
author2 Souza, B. W. S.
Cerqueira, M. A.
Teixeira, J. A.
Cruz, L.
Díaz, R.
Vicente, A. A.
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Casariego, A.
Souza, B. W. S.
Cerqueira, M. A.
Teixeira, J. A.
Cruz, L.
Díaz, R.
Vicente, A. A.
dc.subject.por.fl_str_mv Chitosan
Clay
Micro/nanocomposite
Gas permeability
Mechanical properties
Thermal properties
Science & Technology
topic Chitosan
Clay
Micro/nanocomposite
Gas permeability
Mechanical properties
Thermal properties
Science & Technology
description Blends of chitosan (from Cuban lobster) and clay micro/nanoparticles were prepared by dispersion of the clay particles in the film matrix and the films obtained were characterized in terms of water solubility, water vapor, oxygen and carbon dioxide permeability, optical, mechanical and thermal properties using an Instron universal testing machine, differential scanning calorimetry, thermogravimetric analyses and scanning electron microscopy (SEM). The water vapor barrier properties of the films were significantly improved by incorporation of clay in their composition, while the water solubility decreased as the clay concentration increased (for a constant chitosan concentration). The tensile strength of chitosan/clay films increased significantly with increasing chitosan and clay concentrations, while the values of elongation decreased slightly for high values of chitosan concentration. Tm increased with the increase of chitosan concentration, but the changes in Tm with the addition of clay were not significant. Polynomial models were fitted to the experimental data in order to facilitate future design of chitosan/clay film systems.
publishDate 2009
dc.date.none.fl_str_mv 2009-10
2009-10-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/1822/9449
url http://hdl.handle.net/1822/9449
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv "Food Hydrocolloids". ISSN 0268-005X. 23:7 (Oct. 2009) 1895-1902.
0268-005X
10.1016/j.foodhyd.2009.02.007
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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instacron_str RCAAP
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
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